THE PICTOU COAL FIELD — POOLE. 289 



Acadia seam has been since worked to the south of it, to the west 

 of the corner of the Acadia area. Following the same direction 

 to the bank of the Middle River, an outcrop of black shales and 

 coal is there met with and on which French's tunnel in 1860 was 

 driven about N. 45 E. for 1040 feet. By driving an adit east- 

 ward on them it was hoped an improvement in the quality of the 

 seam would be found, but within the limits of the workings no 

 material change for the better took place. The coal is evidently 

 the prolongation of the Acadia seam but reduced at that point 

 to three feet nine inches in thickness of which only 4 inches were 

 considered superior coal. Of this there can be nc doubt, 

 the face of the extreme north level of the Black 

 Diamond pit workings showed the seam greatly altered from 

 what it was at the slope and rapidly approaching in char- 

 acter that of the seam in French's tunnel, yet on Hartley's 

 map the tunnel was put in the Millstone Grit and separated by 

 an assumed fault of great magnitude. 



None of the faults of the Black Diamond series extend south- 

 east beyond the heart of the village of Westville. Leaving them 

 and following southward the course laid down for the West fault 

 S. 10 E. a strip of higher ground is first crossed in which no faults 

 are known, and then the broken measures of the Drummond area 

 are encountered. Here the disturbance is produced by tlie 

 Drummond series of faults, Avhich have characteristics directly 

 opposite to those of the Black Diamond series ; they dip to the 

 east and increase in strength to the south, and cause the crops of 

 the seams to be thrown to the surface more quickly than the dip 

 would account for, and so produce the basin-shaped terminus to 

 this Section at its southern end that was styled the Bear Creek 

 syncline. 



The following sections of strata are from diamond drill holes 

 at Westville. No. I was put down from the fourth lift by the 

 side of the main slope of Acadia ; No. II from the bottom of the 

 Black Diamond furnace pit, 2,400 feet apart. The greater 

 inclination of the measures in No. II accounts in part for the 

 greater thickness shown. The dips of No. 1 is 26*^ and No, II, 

 30*^. 



